Griffix

I want to try to help out as much as I can but I don't have a
whole lot of information on this game. All I know is that this game
has 2 main campaign sides and a third after you have beaten one
side. I know a bit about the characters and such but not much
else

Here's some questions:

What is a "Side"?

What is the "White Side"?

What is the "Black Side"?

What is the "Red Side"?

What consists of a "Side"?

What goes on in it?

What is the significant differences between the sides and what
happens in each of them?

What are the difficulty settings?

Are there any sort of walkthroughs?

Are there any notes in the game about the characters, places or
events?